B1696 Mercury Code - Autolamp On Circuit Short To Ground
Quick Answer
The Smart Junction Box (SJB) sends a voltage signal to the headlamp switch and the light sensor. Common causes include Faulty Light Sensor, Light Sensor harness is open or shorted, Light Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1696 Mercury indicates Autolamp On Circuit Short To Ground.
- Common causes
- Common causes include Faulty Light Sensor, Light Sensor harness is open or shorted, Light Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1696 Mercury Description
When the headlamp switch is placed in the AUTOLAMPS ON position, the voltage signal is routed to ground. When the SJB detects the headlamp switch in the AUTOLAMPS ON position, the SJB monitors the light sensor input. The light sensor determines the amount of light based on the input received from the ambient lighting conditions. When the ambient level has reached a point (determined by the internal programming of the SJB ), the SJB provides voltage to the headlamps, parking and license plate lamps. The Diagnostic Trouble Code (DTC) sets when the SJB detects a short to ground from the autolamps on input circuit.
What are the Possible Causes of the DTC B1696 Mercury?
- Faulty Light Sensor
- Light Sensor harness is open or shorted
- Light Sensor circuit poor electrical connection
- Faulty Headlamp Switch
- Faulty Smart Junction Box (SJB)
How to Fix the DTC B1696 Mercury?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1696 Mercury code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1696 Mercury Code
1. What are the common symptoms of OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- Common symptoms include the autolamp staying on even when the vehicle is turned off, flickering autolights, and potential draining of the battery.
2. What are the possible causes of OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- The code can be triggered by a short to ground in the autolamp circuit, faulty wiring, a malfunctioning autolamp switch, or a defective body control module.
3. How can I diagnose the OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- Diagnosis typically involves visually inspecting the autolamp circuit for any obvious issues, testing the autolamp switch, checking the wiring for continuity, and using a multimeter to identify shorts to ground.
4. Can I still drive my vehicle with OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- It is generally not recommended to drive with this code active, as it may lead to safety hazards or drain the battery. It's best to address the issue promptly.
5. What are some repair tips for fixing OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- Repair tips include checking and repairing any damaged wiring, replacing a faulty autolamp switch, or reprogramming the body control module if necessary.
6. Can resetting the OBDII system clear the B1696 code?
- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the short to ground is not addressed, the code is likely to return.
7. How much does it typically cost to repair OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- The cost of repair can vary depending on the exact cause of the issue, but it may involve labor costs for diagnosis and repair, as well as any replacement parts needed.
8. Is OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground) a serious problem?
- While it may not directly affect the drivability of the vehicle, leaving this issue unresolved can lead to safety concerns and potential electrical problems.
9. Can a DIY enthusiast fix OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- Depending on their skill level and access to tools, a DIY enthusiast may be able to address this code by following repair guides and tutorials specific to their vehicle.
10. How long does it typically take to repair OBDII code B1696 Mercury (Autolamp On Circuit Short To Ground)?
- The repair time can vary based on the complexity of the issue and the availability of parts, but it may take anywhere from a few hours to a full day to complete the repair.
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